• Gossen Metrawatt

METRISO BASE

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Item number: M550O

Test Instrument for Insulation, Low-resistance and Voltage Measurements

Compact and rugged - for service calls under harsh conditions and laboratory use

  • Test Instrument for Insulation, Low-resistance and Voltage Measurements

The METRISO BASE insulation and resistance measuring instruments allow for quick and effective testing of protective measures in accordance with:

  • DIN VDE 0100
  • ÖVE-EN 1 (Austria)
  • SEV 1000 (Switzerland)
  • and regulations specific to other countries as well
  • Insulation measurement per EN 61557-2 / VDE 0413 part 2
  • Low-resistance measurement per EN 61557-4 / VDE 0413 part 4
  • Voltage testing and measurement up to 500 V

Applications

The insulation measuring instruments are suitable for the following tasks:

  • Measurement of insulation resistance at voltage-free devices and systems, up to 500 V
  • Testing of the resistance of earthing conductors, protective conductors and equipotential bonding
  • Checking of test objects for absence of voltage
  • Testing of electrostatic discharge capacity at floor coverings (using shielded measurement cables) - EN 1081

  • Technical characteristics
    • Digital and analogue display, backlit
    • Intelligent filter - precise and measurement-dependent activation for the measurement of very high resistances - beating, i. e. compensation of 16 2/3 Hz and 50 Hz interference - attenuation of capacitive influences from power cables, etc. - suppression of electric field influences
    • Signalling of dangerous contact voltage by means of LED
    • Indication of limit value violations by means of LED
    • Overvoltage protection - protects the instrument in the event of inadvertent connection to mains power
    • Fuse link for all resistance measuring ranges
    • New: Electronic fuse for protection of the low-resistance measurement RLO also protects the fuse link in the low-resistance measuring range in the event of faulty operation
    • One measuring point self-test with test resistance of 10 MO per EN 50110 / VDE 0105-100
    • Guard terminal for compensating surface current

    METRISO BASE

    Article number M550O

    Measurements

    Measuring ranges Riso 10 k ... 100 GΩ
    Riso U = 50, 100, 250, 500
    R 10 O... 10 kΩ
    RLO 0,01 ... 10 Ω
    U 0 ... 500

    Display functions

    Backlit display
    Limit value LED Limit (green/red)
    Additional acoustic signal Riso, limit value per VDE 0100 RLO
    LED for dangerous contact voltage (when switched off)
    LCD symbol for external voltage
    Battery level display

    Special functions

    Discharge capacitive devices under test
    Safety shutdown (UBatt < 8 V)

    Features

    Measuring category CAT III 600V, CAT IV 300V
    Integrated 10 MΩ test resistor

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Sales International:
Telephone: +49 911 8602-0
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